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Old 11-29-2004, 01:10 PM   #1
dubie
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inline fuses??

While I was re-wiring my alternator last night, I noticed there were 2 inline fuses in my harness. They are on each side of the rad support and both have broken fuses in them. The truck that this harness came out of, had no alternate accesoried installed in it at all, it was still running the stock radio. Can anyone tell me what these are for? I have pics of them but they are on my computer at home. any ideas?
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Old 11-29-2004, 01:54 PM   #2
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I had this problem myself when my battery moved and pinched the wire with the fueses. If i remember correctly that wire is for the voltmeter cause it took my gauge with it when it blew the fuses. I still havn't fixed the gauge but it seems to charge ok. At one time I had it figured out exactly why they did this but I can't remember now and the truck is a little hard to get to. lol. I think the fuses were something like 4.5 amps I had to go to radio shack to get them because they are shorter than most auto fuses. Maybe someone on here has a better explanation than i do.

Hope this helps

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Old 11-29-2004, 02:06 PM   #3
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Hey Tim

Those are the wires/fuses that complete the circuit for the alternator gauge to work, and use 4 amp inline fuses. On a truck equipped with the full gauge instrument cluster.
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Old 11-29-2004, 02:53 PM   #4
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hmmm. I have a full gauge cluster ( no vac or tach) the fuses are broken , but yet my gauge still works...... any ideas on this?
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Old 11-29-2004, 03:12 PM   #5
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Quote:
Originally Posted by dubie
hmmm. I have a full gauge cluster ( no vac or tach) the fuses are broken , but yet my gauge still works...... any ideas on this?
Does it? Put ignition in run position to power everything (don't start it), then pull on lights. If working the needle should list to the left showing a discharge condition.
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Old 11-29-2004, 03:02 PM   #6
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here is a pic of it that I took last night
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Old 11-29-2004, 03:04 PM   #7
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and the one on the other side
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Old 11-29-2004, 06:02 PM   #8
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lol jeff is quick. that's what I was gonna ask. jeff has ya covered tim. or maybe the fuses were bypassed, if its working.
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Old 11-29-2004, 07:10 PM   #9
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He did the test and the needle didn't move. Looks like he'll be gettin some fuses this week.
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Old 11-29-2004, 10:58 PM   #10
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huh, maybe thats why my guage says that my truck is always charging, although it does flicker when Im idiling, Im going to have to check that tonight!
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Old 11-30-2004, 01:57 AM   #11
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I discovered the fuse on the driver side on my truck to be bad replaced it and my ammeter started working. I ended up getting the proper length fuse but for a long time it had a regular one in there
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